How to turn this number in to a fraction trough all these steps ?

What is best way to getting answer for my exam is

Do more republicans (group a) than democrats (group b) favor a bill to make it easier for someone to own a firearm? two hundred republicans and two hundred democrats were asked if they favored a bill that made it easier for someone to own a firearm. how would we write the alternative hypothesis?

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle